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Allow unnamed_addr on declarations.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123529 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2011-01-15 08:15:00 +00:00
parent 6ccb5ef1b5
commit ba7c38c36a
10 changed files with 40 additions and 82 deletions
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10
lib/Linker/LinkModules.cpp
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@@ -352,8 +352,6 @@ static void CopyGVAttributes(GlobalValue *DestGV, const GlobalValue *SrcGV) {
unsigned Alignment = std::max(DestGV->getAlignment(), SrcGV->getAlignment());
DestGV->copyAttributesFrom(SrcGV);
DestGV->setAlignment(Alignment);
if (SrcGV->hasUnnamedAddr())
DestGV->setUnnamedAddr(true);
}
/// GetLinkageResult - This analyzes the two global values and determines what
@@ -521,6 +519,8 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
continue;
}
bool HasUnnamedAddr = SGV->hasUnnamedAddr() && DGV->hasUnnamedAddr();
// If the visibilities of the symbols disagree and the destination is a
// prototype, take the visibility of its input.
if (DGV->isDeclaration())
@@ -565,6 +565,9 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
DGV->getName(), 0, false,
SGV->getType()->getAddressSpace());
// Set the unnamed_addr.
NewDGV->setUnnamedAddr(HasUnnamedAddr);
// Propagate alignment, section, and visibility info.
CopyGVAttributes(NewDGV, SGV);
DGV->replaceAllUsesWith(ConstantExpr::getBitCast(NewDGV,
@@ -609,8 +612,9 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
"': symbol multiple defined");
}
// Set calculated linkage
// Set calculated linkage and unnamed_addr
DGV->setLinkage(NewLinkage);
DGV->setUnnamedAddr(HasUnnamedAddr);
// Make sure to remember this mapping...
ValueMap[SGV] = ConstantExpr::getBitCast(DGV, SGV->getType());